启动容器进程导致“exec：\\”go\\”：$PATH 中找不到可执行文件”：未知

Question

我正在尝试容器化并使用 Docker-compose 启动我的 Go lang 应用程序，图像已根据日志成功构建，但我的容器不适用于 docker-compose up，它向我的控制台抛出以下错误。

无法启动服务应用程序：OCI 运行时创建失败：container_linux.go:346：启动容器进程导致“exec:\\”go\\”：在 $PATH 中找不到可执行文件”：未知

这是我的 Docker 文件的样子。

ARG GO_VERSION=1.13

FROM golang:${GO_VERSION}-alpine AS builder

# We create an /app directory within our
# image that will hold our application source
# files
RUN mkdir /raedar

# Create the user and group files that will be used in the running container to
# run the process as an unprivileged user.
RUN mkdir /user && \
    echo 'nobody:x:65534:65534:nobody:/:' > /user/passwd && \
    echo 'nobody:x:65534:' > /user/group

# Install git.
# Git is required for fetching the dependencies.
# Allow Go to retrieve the dependencies for the buld
RUN apk update && apk add --no-cache ca-certificates git

RUN apk add --no-cache libc6-compat

# Force the go compiler to use modules 
ENV GO111MODULE=on

ADD . /raedar/


WORKDIR /raedar/

RUN go get -d -v golang.org/x/net/html

COPY go.mod go.sum ./

COPY . .

# Compile the binary, we don't want to run the cgo
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o bin/main cmd/app/main.go


# Final stage: the running container.
FROM scratch AS final

WORKDIR /root/

# Import the user and group files from the first stage.
COPY --from=builder /user/group /user/passwd /etc/

# Import the Certificate-Authority certificates for enabling HTTPS.
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/

# Import the compiled executable from the first stage.
COPY --from=builder /raedar/bin/main .

EXPOSE 8080
# Perform any further action as an unprivileged user.
USER nobody:nobody

# Run the compiled binary.
CMD ["./main"]

Answer 1

该错误表明您正在尝试运行go ，而不是./main ：

exec: \\"go\\": executable file not found in $PATH

匹配的 Dockerfile 将具有CMD ["go", "./main"]而不是CMD ["./main"] 。

因此，要么您意外地构建了不同的 Dockerfile，要么在使用该映像运行容器时更改了命令。 特别是，如果您正在使用docker-compose ，请确保您没有设置command: go ./main或entrypoint: go ，这两者都可能导致此行为。